GB 5009.278-2016 Translated English of Chinese Standard. (GB5009.278-2016): National food safety standard - Determination of ethylenediaminetetraacetates in foodshttps://www.chinesestandard.net, 2018 M12 8 - 13 pages This Standard specifies the liquid chromatography for the determination of ethylenediaminetetraacetates in foods. This Standard applies to the determination of disodium ethylenediaminetetraacetate dihydrate in jams, preserved fruits, canned pickled vegetables, vegetable purees (sauces) except tomato sauce, canned nuts and seeds, canned mixed congees, compound seasonings and beverages, and the determination of calcium disodium ethylenediaminetetraacetate hydrate in compound seasonings. This Standard does not apply to the determination of sodium iron (III) ethylenediaminetetraacetate trihydrate in iron fortified soy sauce. |
Common terms and phrases
acetate mixed solution acid-methanol aqueous solution add 25 mL bromide-sodium acetate mixed calcium disodium ethylenediaminetetraacetate carry out ultrasonic chromatogram of disodium compound seasonings concentration 1 mg/mL content of calcium content of disodium content of ethylenediaminetetraacetates Determination of ethylenediaminetetraacetates dihydrate in sample disodium ethylenediaminetetraacetate dihydrate disodium ethylenediaminetetraacetate hydrate ethylenediaminetetraacetate dihydrate complex ethylenediaminetetraacetate dihydrate standard ethylenediaminetetraacetate hydrate standard ethylenediaminetetraacetates in foods extraction for 20 ferric chloride Figure A.1 Formic acid formic acid-methanol aqueous hydrate in sample hydrate standard solution liquid chromatograph liquid supernatant mass concentration mg/kg mixed solution pH mL of methanol mL of water phosphoric acid purified relative molecular mass result of calculation sample solution sealing and marking serial standard sodium acetate solid phase extraction solution of concentration solution pH 4.0 standard curve standard medium solution standard stock standard working solutions stored below 4°C succession 5 mL tetrabutylammonium bromide Tetrabutylammonium bromide-sodium acetate tube of 50 ultrasonic extraction vortex to mix water to dilute